2.5" 200cpsi High Flow cat for GTS

Hi guys

So I've been doing a lot of research. I've learned that cats aren't exactly car specific and will need to be welded for the Celica anyway, however there is barely any info listed regarding cpsi for most models. I've noticed it seems to be calculated using the width of the can but I just don't know enough about it to make that call.

Sorry in advance if this has been asked about and discussed a trillion times, but is anyone able to point me in the direction of a cat that matches these exact requirements? I'm planing on going f/ie eventually hence the 2.5" cat and I definitely want no less than 200cpsi just to be on the safe side.

Thanks heaps